1. Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education) State Key Laboratory of Superhard Materials College of Physics Jilin University Changchun 130012 P. R. China
2. School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
3. International Center for Computational Method and Software College of Physics Jilin University Jilin 130012 P. R. China
4. Electron Microscopy Center, and Jilin Provincial International Cooperation Key Laboratory of High‐Efficiency Clean Energy Materials Jilin University Changchun 130012 P. R. China
5. School of Mechanical Science and Aerospace Engineering Jilin University Changchun 130022 P. R. China
6. PetroChina Res Inst Petr Explorat & Dev RIPED Beijing 100083 P. R. China